I almost said soda, but that's only when I'm playing NWN on the LAN and my brother brings over Cherry Coke. Single player or online, I drink milk, apple juice, and orange juice - none of which are on the list. Bah.

Sunday-Thursday consume large quantities of #1
Friday-Saturday consume large quantities of #2

Do not mix unless prior consumption of #2 > you can remember.
In this case you probably won't remember mixing either!

"Fray the strings... Throw the shapes... Hold your breath... Listen;
I am a world before I am a man;
I was a creature before I could stand;
I will remember before I forget;
Before I forget that"
-Slipknot
"Before I Forget"

I'd say coffee,
But then there is nothing new in that, the ones of you that know me (not many but ey ), know that I always drink coffee.
Never seen me drink it while I sleep but I wouldn't be surprised.

Keeps you on your feet while you spent to much time on avlis and other roleplaying games.